两个关于C++ new的实例

两个关于C++ new的实例

#include "new"

namespace king{
inline void *operator new(std::size_t count){
    return NULL;
}
}

int main(){
    int * ptr = (int * )king::operator new((size_t)sizeof(int));

    if(ptr)
        return 1;

    return 0;
}

#include "new.h"

class king{
    int tmp;
};

int main(){
    char * buff = new char[sizeof(king)];
    king *ptask = new(buff) king();

    return 0;
}